Rolling Lobe Type Bus Air Spring Vibration Isolation Bus Suspension Air Bags Replacement

EVEN (Qingdao Guoxiang Yiwen Rubber Technology Co., Ltd.) supplies high-performance reversible style (rolling lobe) air springs for bus and coach chassis suspension systems. Engineered with specialty rubber and the world-first "Liquid Gold" material, our reversible sleeve air springs deliver ultra-long fatigue durability and wear resistance for city buses, intercity coaches and high-end passenger transport applications.

• Structural topology optimization - optimized material distribution reduces stress concentration; modular segmentation with reinforced end sections and a flexible central buffer achieves the ideal balance of lightweight and strength.
• Specialty rubber + "Liquid Gold" material - the world-first liquid-phase mixing compound delivers ultra-long fatigue durability and wear resistance.
• Ultra-strong bonding technology - advanced rubber-to-cord adhesion improves bonding performance by 30%-50% compared with conventional products.
• Advanced manufacturing - produced on a fully automatic winding production line with precise calendering, processing and adhesion control, ensuring consistent quality.
• Full lifecycle traceability - every air spring is traceable from raw material to finished product through the Eco-Rubber Cloud system with MES, WMS and ERP integration.
• Rigorous testing - each product passes 80°C and -40°C vertical durability tests and 1/4 suspension durability tests (inflation pressure 0.7 MPa, amplitude ±50 mm, frequency 2.5 Hz, per GB/T13061).

• Bus and coach chassis suspension systems (OEM and aftermarket).
• City buses, intercity coaches and tourist coaches.
• Widely matched with leading Chinese bus brands including Yutong, King Long, Zhongtong, Foton, Golden Dragon, Daewoo and Sunwin.
• Highway logistics and urban transit operating scenarios.

• Fatigue life of up to 18.17 million cycles, reaching an internationally leading level.
• Fatigue cycles exceed the national standard (GB/T13061) by more than 2 times under compact-size and heavy-load conditions.
• Full model interchangeability with major OE references (ContiTech / Firestone cross-reference available).
• Backed by the National Rubber & Tire Engineering Technology Research Center (Guoxiang Industry Chain), with 3,500+ patents and IATF 16949 certification.
• Customized development and collaborative design available according to customer requirements.

For OEM projects, aftermarket supply or custom air spring development, please contact EVEN - your premier global specialist of engineered rubber solutions.